Set drop-profiles LOW_DROP fill-level 100 drop-probability 100 Set drop-profiles LOW_DROP fill-level 95 drop-probability 0 Set term ACCEPT_OTHER then forwarding-class best-effort Set term PIM then forwarding-class network-control Set term OSPF then forwarding-class network-control Set term ICMP then forwarding-class assured-forwarding loss-priority high Set term SNMP then forwarding-class assured-forwarding loss-priority high Set term TACACS then forwarding-class assured-forwarding loss-priority high Set term SSH then forwarding-class assured-forwarding loss-priority high Set term VIDEO_BEARER then forwarding-class assured-forwarding loss-priority low Set term VIDEO_BEARER from port 3230-3235 Set term VIDEO_GK then forwarding-class assured-forwarding loss-priority low Set term H.323 then forwarding-class assured-forwarding loss-priority low Set term RTP then forwarding-class expedited-forwarding Set term SIP then forwarding-class expedited-forwarding
Configure a Multifield (MF) classifier to classify traffic based on protocol and ports as shown in the example below. The PE router must classify ingress traffic entering the backbone. If the router is not configured to enforce a QoS policy in accordance with the QoS DoDIN Technical Profile, this is a finding.Ĭonfigure a QoS policy on each router in accordance with the QoS DoDIN Technical Profile. Verify that the configured QoS scheduler map has been applied to all interfaces and that the rewrite rules have been applied to all core-facing interfaces as shown in the example below. Verify that scheduler maps have been configured to link the forwarding classes to schedulers as shown in the example below.įorwarding-class expedited-forwarding scheduler VOIP_SCHED įorwarding-class network-control scheduler CONTROL_PLANE_SCHED įorwarding-class assured-forwarding scheduler MGMT_SCHED įorwarding-class best-effort scheduler BEST_EFFORT_SCHED Verify that drop profiles and schedulers have been configured that define how queued egress packets are prioritized.ĭrop-profile-map loss-priority low protocol any drop-profile LOW_DROP ĭrop-profile-map loss-priority high protocol any drop-profile HIGH_DROP Verify that the classifier filter is bound to all CE-facing interfaces as shown in the example below. Verify that a Multifield (MF) classifier has been configured to classify traffic based on protocol and ports as shown in the example below. PE routers are responsible for classifying customer traffic and setting the forwarding class. Review the router configuration and verify that a QoS policy has been configured to provide preferred treatment for mission-critical applications in accordance with the QoS DoDIN Technical Profile. Juniper Router RTR Security Technical Implementation Guide It is imperative that end-to-end QoS is implemented within the IP core network to provide preferred treatment for mission-critical applications. DiffServ QoS categorizes network traffic, prioritizes it according to its relative importance, and provides priority treatment based on the classification.
#DIFFSERV SIP DEFINITION CODE#
Packet markings such as IP Precedence and its successor, Differentiated Services Code Points (DSCP), were defined along with specific per-hop behaviors for key traffic types to enable a scalable QoS solution.
The Differentiated Services Model (DiffServ) is based on per-hop behavior by categorizing traffic into different classes and enabling each node to enforce a forwarding treatment to each packet as dictated by a policy. To manage the multitude of applications and services, a network requires a QoS framework to differentiate traffic and provide a method to manage network congestion. Different applications have unique requirements and toleration levels for delay, jitter, bandwidth, packet loss, and availability.
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